Differences between 02 and 03 (depends on what it rolled off the line really)

different radiator w/rad cap
different cover on upper coolant resivoir
different ECU map (IIRC to fix P0443 code CEL problem on 02's)
light up key ring
front and rear brake brakets and pads
different clutch

there's something else I'm missing... I think a different clutch master cyl was in 03 or a proporitoning or slowdown valve or something to help people not break their tranny as easily.